B173d Peugeot Work [portable]

BSI (Body Control Unit), Immobilizer, Keyless Entry Antenna/Receiver. 3. Common Causes

After the physical work is done, the fault code must be cleared using a DiagBox or a standard OBD-II scanner. In some Peugeot models, the BSI needs a "soft reset" (disconnecting the battery for 10 minutes) to recognize the new signal parameters. Why You Shouldn't Ignore B173D b173d peugeot work

: The vehicle may display "key not detected" or fail to recognize the immobilizer signal, preventing the engine from starting. BSI (Body Control Unit)

: If the BSI has lost its synchronization with the keys—often after a major battery drain or jump-start—it may trigger this code. Wiring Faults b173d peugeot work